Design and implementation of a hybrid regenerative power system combining grid-tie and uninterruptible power supply functions

H. C. Chiang, T. T. Ma, Y. H. Cheng, J. M. Chang, W. N. Chang

Research output: Contribution to journalJournal Article peer-review

63 Scopus citations

Abstract

A hybrid regenerative power system including photovoltaic (PV) and wind powers and combining the functions of the grid-tie system and uninterruptible power supply (UPS) for critical load applications is presented. The proposed system employs six-arm converter topology with three arms for the rectifier-inverter, one arm for battery charging/discharging and two arms for power conversion of the PV module and wind turbine generator. The operation modes include the grid-tie mode and the UPS mode depending on the grid status. A power balance control scheme is presented, which can reduce the grid power and utilise the regenerative power in the most effective way for fulfilling the two requirements of a three-stage charging of the battery and no interruption of the load. Also, the PV and wind powers can be utilised with priority in order to provide the flexibility for adapting to local circumstances. A single-phase 1.2kW/110V system is designed and implemented, and the effectiveness of the proposed system and control methodology are verified with some experimental results.

Original languageEnglish
Pages (from-to)85-99
Number of pages15
JournalIET Renewable Power Generation
Volume4
Issue number1
DOIs
StatePublished - 2010

Fingerprint

Dive into the research topics of 'Design and implementation of a hybrid regenerative power system combining grid-tie and uninterruptible power supply functions'. Together they form a unique fingerprint.

Cite this